Description:
Hello (from France), I'm seeing a crash when I'm working on Writer and Draw and that I switch from one to the other with Alt+Tab.

In both software, I'm working with table (chart).

The crash of both software is instantaneous and I'm being proposed to restore them.


LibreOffice Version :

Version : 6.4.7.2
Build ID : 1:6.4.7-0ubuntu0.20.04.1
Threads CPU : 8; OS : Linux 5.4; UI Render : par défaut; VCL: gtk3; 
Locale : fr-FR (fr_FR.UTF-8); Langue IHM : fr-FR
Calc: threaded


System Infos :

System:    Kernel: 5.4.0-77-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.8.6 
           wm: muffin dm: LightDM Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal


Thanks for your help

Steps to Reproduce:
1.doing an update in Draw (like add a letter)
2.switching (alt+tab) to Writer (without doing anything, not even click)
3.switching back to Draw (alt+tab) in less than 2 seconds.

Actual Results:
The crash of both software is instantaneous and I'm being proposed to restore them.

Expected Results:
no crash, just switching with alt+tab


Reproducible: Always


User Profile Reset: Yes



Additional Info:
Already tried the "no failure" mode (see french post here : https://ask.libreoffice.org/fr/question/318015/plantage-alttab-entre-writer-et-draw/